Classification
330 - Economics
135
320 - Political science
69
300 - Social sciences
16
333 - Economics of land & energy
12
332 - Financial economics
11
340 - Law
11
336 - Public finance
10
900 - History & geography
10
338 - Production
6
363 - Other social problems & services
6
339 - Macroeconomics & related topics
5
380 - Commerce, communications & transportation
4
658 - General management
4
304 - Factors affecting social behavior
3
610 - Medicine & health
3
370 - Education
2
657 - Accounting
2
000 - Computer science, information & general works
1
140 - Specific philosophical schools
1
305 - Social groups
1
371 - Schools & their activities; special education
1
381 - Commerce
1
600 - Technology
1
741 - Drawing & drawings
1
808 - Rhetoric & collections of literature
1
972 - Middle America; Mexico
1